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SHAREOWNERS' EQUITY Amounts Reclassified from AOCI (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Net Income [Member] [Member] |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
TotalOtherComprehensiveIncomeReclassification, Net of Tax | $ 3 | $ (30)
Unrealized gain (loss) on cash flow hedges, net of tax: |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification to earnings, tax effect | (15) | (4)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax | (46) | (13)
Unrealized gain (loss) on cash flow hedges, net of tax: | Income Tax Expense Benefit [Member] |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification to earnings, tax effect | (15) | (4)
Unrealized gain (loss) on cash flow hedges, net of tax: | Net Income [Member] [Member] |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax | 46 | 13
Unrealized gain (loss) on cash flow hedges, net of tax: | Interest rate contracts | Interest Expense |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax | (3) | (6)
Unrealized gain (loss) on cash flow hedges, net of tax: | Foreign exchange contracts | Revenue |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax | 64 | 23
Accumulated Defined Benefit Plans Adjustment [Member] | Income Tax Expense Benefit [Member] |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax | 14 | 13
Accumulated Defined Benefit Plans Adjustment [Member] | Net Income [Member] [Member] |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax | (43) | (43)
Accumulated Defined Benefit Plans Adjustment [Member] | Investment Income and Other |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax | $ (57) | $ (56)

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